Effect of Ground Motions on Nonlinear Seismic Behavior of Corroded Buried Gas Pipeline
American Journal of Civil Engineering
Volume 3, Issue 2-1, March 2015, Pages: 9-13
Received: Jan. 3, 2015; Accepted: Jan. 8, 2015; Published: Jan. 14, 2015
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Authors
S. Mohammad S. Kolbadi, Department of Civil Engineering, Shahid Beheshti University of Technology, Tehran, Iran
Nemat Hassani, Department of Civil Engineering, Shahid Beheshti University, Tehran, Iran
S. Mahdi S. Kolbadi, Department of Civil Engineering, K. N. Toosi University of Technology, Tehran, Iran
M. R. Shiravand, Department of Civil Engineering, Shahid Beheshti University, Tehran, Iran
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Abstract
Recent earthquakes have damaged many lifeline structures. Buried gas pipelines are also no exceptions. Sometimes, theses pipes are subjected to a thinning of the wall thickness due to corrosion. Therefore, it is important to evaluate the strength of the pipes undergoing local wall thinning to maintain the integrity of the piping systems. The main purpose of this study is to understand failure aspects of buried pipeline caused by earthquake and degradation of metal due to corrosion through FEM. In dynamic analysis, corroded pipeline approaches to critical criteria (reaching the yield stress) in much less time. In this case, if the corroded pipe thickness be half, the yielding angle is reduced to a quarter.
Keywords
Buried Pipeline, Corrosion, Fault, Landslide, Yielding Pressure, Seismic Response
To cite this article
S. Mohammad S. Kolbadi, Nemat Hassani, S. Mahdi S. Kolbadi, M. R. Shiravand, Effect of Ground Motions on Nonlinear Seismic Behavior of Corroded Buried Gas Pipeline, American Journal of Civil Engineering. Special Issue: Structural Analysis Progresses: Designing, Analyzing and Testing. Vol. 3, No. 2-1, 2015, pp. 9-13. doi: 10.11648/j.ajce.s.2015030201.12
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